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Finding the Fourth Proportional to 308,006.44, 425,028.90 and 178,933.48

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Solution

The fourth proportional to 308,006.44, 425,028.90 and 178,933.48 is: 246,916.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,006.44 : 425,028.90 = 178,933.48 : x
  2. Step 2: Convert to fraction form
    308,006.44/425,028.90 = 178,933.48/x
  3. Step 3: Cross multiply
    308,006.44x = 425,028.90 × 178,933.48
  4. Step 4: Simplify right side
    308,006.44x = 76,051,900,177.57
  5. Step 5: Solve for x
    x = 76,051,900,177.57/308,006.44
  6. Step 6: Final answer
    x = 246,916.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.